人教版九年級英語Unit 13 We're trying to save the earth!Section B( 2a~2e)同步練習（含答案）

Unit13We'retryingtosavetheearth!SectionB(2a~2e)同步練習一、詞匯運用根據(jù)首字母或漢語提示寫單詞。(1)It'sc______ofpeopletokillsomanysharksfortheirfins.(2)Thefactoryproducesharmfulgaseswhichareh______toourhealth.(3)Everyoneshouldplayapartin______(save)theearth.(4)Weshouldstopusingp______bagstoprotecttheenvironment.用所給單詞的適當形式填空。(1)Manysharks______(kill)fortheirfinseveryyear.(2)Thewaterintherivernearmyhomeisgetting______(bad)thanbefore.(3)Weshouldtakeactiontostopthe______(pollute)ofourenvironment.(4)Peoplearetryingtheirbest______(solve)theproblemofairpollution.二、單項選擇Sharksare______thetopofthefoodchainintheocean'secosystem.A.inB.atC.onD.byManywildanimalsare______greatdanger.Weshouldprotectthem.A.inB.atC.onD.withTheoldmanis______weak______lookafterhimself.A.too;toB.so;thatC.such;thatD.enough;toThestudentsarebusy______fortheenvironmentalprotectionproject.A.prepareB.preparingC.toprepareD.prepared—______isthepopulationofyourcity?—About3million.A.HowmanyB.HowmuchC.WhatD.Which三、句型轉(zhuǎn)換Peoplearekillingsharksfortheirfins.(改為被動語態(tài))Sharks__________________fortheirfins.Thewaterisverydirty.Wecan'tdrinkit.(合并為一句)Thewateris______dirty______wecan'tdrinkit.Theyaretryingtosavetheearth.(對劃線部分提問)______aretheytryingto______?Theairpollutionisveryseriousinourcity.(改為感嘆句)____________theairpollutionisinourcity!四、閱讀理解Sharksareamazinganimals.Theyareatthetopofthefoodchainintheocean'secosystem.Butnow,manysharksareindanger.Peoplekillsharksfortheirfins.Sharkfinsoupisatraditionaldishinsomepartsoftheworld.Togetfins,peoplecatchsharks,cutofftheirfinsandthenthrowthesharksbackintotheocean.Withoutfins,thesharkscan'tswimandtheywilldieslowly.Thenumberofsharkshasdroppedby90%inthelast20to30years.Ifwedon'tdosomethingtostopthis,therewillbenosharksleftinthefuture.Protectingsharksisveryimportant.Sharksplayanimportantroleinkeepingthebalanceoftheocean'secosystem.Weshouldmakelawstostoppeoplefromkillingsharksandencouragepeopletoprotectthem.Whyaremanysharksindanger?A.Becausetheyareatthetopofthefoodchain.B.Becausepeoplekillthemfortheirfins.C.Becausetheycan'tswim.D.Becausetheyarenotimportantintheocean'secosystem.Whatdopeopledowithsharksaftercuttingofftheirfins?A.Theyeatthem.B.Theykeepthemaspets.C.Theythrowthembackintotheocean.D.Theysellthem.Whatwillhappenifwedon'tprotectsharks?A.Theocean'secosystemwillbebetter.B.Therewillbemoresharksinthefuture.C.Sharkswillbecomestronger.D.Therewillbenosharksleftinthefuture.Whatshouldwedotoprotectsharks?A.Makelawstostoppeoplefromkillingsharks.B.Encouragepeopletoprotectsharks.C.BothAandB.D.Noneoftheabove.五、書面表達地球是我們共同的家園，但是，隨著工業(yè)的發(fā)展，環(huán)境污染越來越嚴重。請以“HowtoProtecttheEarth”為題，寫一篇80詞左右的短文，談談你的想法和建議。答案一、詞匯運用(1)cruel(2)harmful(3)saving(4)pl